Merge branch 'perf-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip

* 'perf-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: (172 commits)
  perf_event, amd: Fix spinlock initialization
  perf_event: Fix preempt warning in perf_clock()
  perf tools: Flush maps on COMM events
  perf_events, x86: Split PMU definitions into separate files
  perf annotate: Handle samples not at objdump output addr boundaries
  perf_events, x86: Remove superflous MSR writes
  perf_events: Simplify code by removing cpu argument to hw_perf_group_sched_in()
  perf_events, x86: AMD event scheduling
  perf_events: Add new start/stop PMU callbacks
  perf_events: Report the MMAP pgoff value in bytes
  perf annotate: Defer allocating sym_priv->hist array
  perf symbols: Improve debugging information about symtab origins
  perf top: Use a macro instead of a constant variable
  perf symbols: Check the right return variable
  perf/scripts: Tag syscall_name helper as not yet available
  perf/scripts: Add perf-trace-python Documentation
  perf/scripts: Remove unnecessary PyTuple resizes
  perf/scripts: Add syscall tracing scripts
  perf/scripts: Add Python scripting engine
  perf/scripts: Remove check-perf-trace from listed scripts
  ...

Fix trivial conflict in tools/perf/util/probe-event.c

6 files changed, 96 insertions, 33 deletions

diff --git a/include/linux/bitops.h b/include/linux/bitops.h
index c05a29cb9bb2..25b8b2f33ae9 100644
--- a/include/linux/bitops.h
+++ b/include/linux/bitops.h
@@ -25,7 +25,7 @@
 static __inline__ int get_bitmask_order(unsigned int count)
 {
         int order;
-        
+
         order = fls(count);
         return order;   /* We could be slightly more clever with -1 here... */
 }
@@ -33,7 +33,7 @@ static __inline__ int get_bitmask_order(unsigned int count)
 static __inline__ int get_count_order(unsigned int count)
 {
         int order;
-        
+
         order = fls(count) - 1;
         if (count & (count - 1))
                 order++;
@@ -45,6 +45,31 @@ static inline unsigned long hweight_long(unsigned long w)
         return sizeof(w) == 4 ? hweight32(w) : hweight64(w);
 }
 
+/*
+ * Clearly slow versions of the hweightN() functions, their benefit is
+ * of course compile time evaluation of constant arguments.
+ */
+#define HWEIGHT8(w)                                     \
+      ( BUILD_BUG_ON_ZERO(!__builtin_constant_p(w)) +   \
+        (!!((w) & (1ULL << 0))) +                       \
+        (!!((w) & (1ULL << 1))) +                       \
+        (!!((w) & (1ULL << 2))) +                       \
+        (!!((w) & (1ULL << 3))) +                       \
+        (!!((w) & (1ULL << 4))) +                       \
+        (!!((w) & (1ULL << 5))) +                       \
+        (!!((w) & (1ULL << 6))) +                       \
+        (!!((w) & (1ULL << 7))) )
+
+#define HWEIGHT16(w) (HWEIGHT8(w)  + HWEIGHT8((w) >> 8))
+#define HWEIGHT32(w) (HWEIGHT16(w) + HWEIGHT16((w) >> 16))
+#define HWEIGHT64(w) (HWEIGHT32(w) + HWEIGHT32((w) >> 32))
+
+/*
+ * Type invariant version that simply casts things to the
+ * largest type.
+ */
+#define HWEIGHT(w)   HWEIGHT64((u64)(w))
+
 /**
  * rol32 - rotate a 32-bit value left
  * @word: value to rotate
diff --git a/include/linux/ftrace.h b/include/linux/ftrace.h
index 1cbb36f2759c..01e6adea07ec 100644
--- a/include/linux/ftrace.h
+++ b/include/linux/ftrace.h
@@ -134,6 +134,8 @@ extern void
 unregister_ftrace_function_probe_func(char *glob, struct ftrace_probe_ops *ops);
 extern void unregister_ftrace_function_probe_all(char *glob);
 
+extern int ftrace_text_reserved(void *start, void *end);
+
 enum {
         FTRACE_FL_FREE          = (1 << 0),
         FTRACE_FL_FAILED        = (1 << 1),
@@ -141,7 +143,6 @@ enum {
         FTRACE_FL_ENABLED       = (1 << 3),
         FTRACE_FL_NOTRACE       = (1 << 4),
         FTRACE_FL_CONVERTED     = (1 << 5),
-        FTRACE_FL_FROZEN        = (1 << 6),
 };
 
 struct dyn_ftrace {
@@ -250,6 +251,10 @@ static inline int unregister_ftrace_command(char *cmd_name)
 {
         return -EINVAL;
 }
+static inline int ftrace_text_reserved(void *start, void *end)
+{
+        return 0;
+}
 #endif /* CONFIG_DYNAMIC_FTRACE */
 
 /* totally disable ftrace - can not re-enable after this */
diff --git a/include/linux/ftrace_event.h b/include/linux/ftrace_event.h
index 84a5629adfd8..6b7c444ab8f6 100644
--- a/include/linux/ftrace_event.h
+++ b/include/linux/ftrace_event.h
@@ -5,6 +5,7 @@
 #include <linux/trace_seq.h>
 #include <linux/percpu.h>
 #include <linux/hardirq.h>
+#include <linux/perf_event.h>
 
 struct trace_array;
 struct tracer;
@@ -137,9 +138,6 @@ struct ftrace_event_call {
 
 #define FTRACE_MAX_PROFILE_SIZE 2048
 
-extern char *perf_trace_buf;
-extern char *perf_trace_buf_nmi;
-
 #define MAX_FILTER_PRED         32
 #define MAX_FILTER_STR_VAL      256     /* Should handle KSYM_SYMBOL_LEN */
 
@@ -187,13 +185,27 @@ do {									\
                 __trace_printk(ip, fmt, ##args);                        \
 } while (0)
 
-#ifdef CONFIG_EVENT_PROFILE
+#ifdef CONFIG_PERF_EVENTS
 struct perf_event;
 extern int ftrace_profile_enable(int event_id);
 extern void ftrace_profile_disable(int event_id);
 extern int ftrace_profile_set_filter(struct perf_event *event, int event_id,
                                      char *filter_str);
 extern void ftrace_profile_free_filter(struct perf_event *event);
+extern void *
+ftrace_perf_buf_prepare(int size, unsigned short type, int *rctxp,
+                         unsigned long *irq_flags);
+
+static inline void
+ftrace_perf_buf_submit(void *raw_data, int size, int rctx, u64 addr,
+                       u64 count, unsigned long irq_flags)
+{
+        struct trace_entry *entry = raw_data;
+
+        perf_tp_event(entry->type, addr, count, raw_data, size);
+        perf_swevent_put_recursion_context(rctx);
+        local_irq_restore(irq_flags);
+}
 #endif
 
 #endif /* _LINUX_FTRACE_EVENT_H */
diff --git a/include/linux/list.h b/include/linux/list.h
index 969f6e92d089..5d9c6558e8ab 100644
--- a/include/linux/list.h
+++ b/include/linux/list.h
@@ -206,6 +206,20 @@ static inline int list_empty_careful(const struct list_head *head)
 }
 
 /**
+ * list_rotate_left - rotate the list to the left
+ * @head: the head of the list
+ */
+static inline void list_rotate_left(struct list_head *head)
+{
+        struct list_head *first;
+
+        if (!list_empty(head)) {
+                first = head->next;
+                list_move_tail(first, head);
+        }
+}
+
+/**
  * list_is_singular - tests whether a list has just one entry.
  * @head: the list to test.
  */
diff --git a/include/linux/perf_event.h b/include/linux/perf_event.h
index a177698d95e2..7b18b4fd5df7 100644
--- a/include/linux/perf_event.h
+++ b/include/linux/perf_event.h
@@ -288,7 +288,7 @@ struct perf_event_mmap_page {
 };
 
 #define PERF_RECORD_MISC_CPUMODE_MASK           (3 << 0)
-#define PERF_RECORD_MISC_CPUMODE_UNKNOWN                (0 << 0)
+#define PERF_RECORD_MISC_CPUMODE_UNKNOWN        (0 << 0)
 #define PERF_RECORD_MISC_KERNEL                 (1 << 0)
 #define PERF_RECORD_MISC_USER                   (2 << 0)
 #define PERF_RECORD_MISC_HYPERVISOR             (3 << 0)
@@ -354,8 +354,8 @@ enum perf_event_type {
          *      u64                             stream_id;
          * };
          */
-        PERF_RECORD_THROTTLE            = 5,
-        PERF_RECORD_UNTHROTTLE          = 6,
+        PERF_RECORD_THROTTLE                    = 5,
+        PERF_RECORD_UNTHROTTLE                  = 6,
 
         /*
          * struct {
@@ -369,10 +369,10 @@ enum perf_event_type {
 
         /*
          * struct {
-         *      struct perf_event_header        header;
-         *      u32                             pid, tid;
+         *      struct perf_event_header        header;
+         *      u32                             pid, tid;
          *
-         *      struct read_format              values;
+         *      struct read_format              values;
          * };
          */
         PERF_RECORD_READ                        = 8,
@@ -410,7 +410,7 @@ enum perf_event_type {
          *        char                  data[size];}&& PERF_SAMPLE_RAW
          * };
          */
-        PERF_RECORD_SAMPLE              = 9,
+        PERF_RECORD_SAMPLE                      = 9,
 
         PERF_RECORD_MAX,                        /* non-ABI */
 };
@@ -476,9 +476,11 @@ struct hw_perf_event {
         union {
                 struct { /* hardware */
                         u64             config;
+                        u64             last_tag;
                         unsigned long   config_base;
                         unsigned long   event_base;
                         int             idx;
+                        int             last_cpu;
                 };
                 struct { /* software */
                         s64             remaining;
@@ -496,9 +498,8 @@ struct hw_perf_event {
         atomic64_t                      period_left;
         u64                             interrupts;
 
-        u64                             freq_count;
-        u64                             freq_interrupts;
-        u64                             freq_stamp;
+        u64                             freq_time_stamp;
+        u64                             freq_count_stamp;
 #endif
 };
 
@@ -510,6 +511,8 @@ struct perf_event;
 struct pmu {
         int (*enable)                   (struct perf_event *event);
         void (*disable)                 (struct perf_event *event);
+        int (*start)                    (struct perf_event *event);
+        void (*stop)                    (struct perf_event *event);
         void (*read)                    (struct perf_event *event);
         void (*unthrottle)              (struct perf_event *event);
 };
@@ -563,6 +566,10 @@ typedef void (*perf_overflow_handler_t)(struct perf_event *, int,
                                         struct perf_sample_data *,
                                         struct pt_regs *regs);
 
+enum perf_group_flag {
+        PERF_GROUP_SOFTWARE = 0x1,
+};
+
 /**
  * struct perf_event - performance event kernel representation:
  */
@@ -572,6 +579,7 @@ struct perf_event {
         struct list_head                event_entry;
         struct list_head                sibling_list;
         int                             nr_siblings;
+        int                             group_flags;
         struct perf_event               *group_leader;
         struct perf_event               *output;
         const struct pmu                *pmu;
@@ -656,7 +664,7 @@ struct perf_event {
 
         perf_overflow_handler_t         overflow_handler;
 
-#ifdef CONFIG_EVENT_PROFILE
+#ifdef CONFIG_EVENT_TRACING
         struct event_filter             *filter;
 #endif
 
@@ -681,7 +689,8 @@ struct perf_event_context {
          */
         struct mutex                    mutex;
 
-        struct list_head                group_list;
+        struct list_head                pinned_groups;
+        struct list_head                flexible_groups;
         struct list_head                event_list;
         int                             nr_events;
         int                             nr_active;
@@ -744,10 +753,9 @@ extern int perf_max_events;
 
 extern const struct pmu *hw_perf_event_init(struct perf_event *event);
 
-extern void perf_event_task_sched_in(struct task_struct *task, int cpu);
-extern void perf_event_task_sched_out(struct task_struct *task,
-                                        struct task_struct *next, int cpu);
-extern void perf_event_task_tick(struct task_struct *task, int cpu);
+extern void perf_event_task_sched_in(struct task_struct *task);
+extern void perf_event_task_sched_out(struct task_struct *task, struct task_struct *next);
+extern void perf_event_task_tick(struct task_struct *task);
 extern int perf_event_init_task(struct task_struct *child);
 extern void perf_event_exit_task(struct task_struct *child);
 extern void perf_event_free_task(struct task_struct *task);
@@ -762,7 +770,7 @@ extern int perf_event_task_disable(void);
 extern int perf_event_task_enable(void);
 extern int hw_perf_group_sched_in(struct perf_event *group_leader,
                struct perf_cpu_context *cpuctx,
-               struct perf_event_context *ctx, int cpu);
+               struct perf_event_context *ctx);
 extern void perf_event_update_userpage(struct perf_event *event);
 extern int perf_event_release_kernel(struct perf_event *event);
 extern struct perf_event *
@@ -851,8 +859,7 @@ extern int sysctl_perf_event_mlock;
 extern int sysctl_perf_event_sample_rate;
 
 extern void perf_event_init(void);
-extern void perf_tp_event(int event_id, u64 addr, u64 count,
-                                 void *record, int entry_size);
+extern void perf_tp_event(int event_id, u64 addr, u64 count, void *record, int entry_size);
 extern void perf_bp_event(struct perf_event *event, void *data);
 
 #ifndef perf_misc_flags
@@ -873,12 +880,12 @@ extern void perf_event_enable(struct perf_event *event);
 extern void perf_event_disable(struct perf_event *event);
 #else
 static inline void
-perf_event_task_sched_in(struct task_struct *task, int cpu)             { }
+perf_event_task_sched_in(struct task_struct *task)                      { }
 static inline void
 perf_event_task_sched_out(struct task_struct *task,
-                            struct task_struct *next, int cpu)          { }
+                            struct task_struct *next)                   { }
 static inline void
-perf_event_task_tick(struct task_struct *task, int cpu)                 { }
+perf_event_task_tick(struct task_struct *task)                          { }
 static inline int perf_event_init_task(struct task_struct *child)       { return 0; }
 static inline void perf_event_exit_task(struct task_struct *child)      { }
 static inline void perf_event_free_task(struct task_struct *task)       { }
@@ -893,13 +900,13 @@ static inline void
 perf_sw_event(u32 event_id, u64 nr, int nmi,
                      struct pt_regs *regs, u64 addr)                    { }
 static inline void
-perf_bp_event(struct perf_event *event, void *data)             { }
+perf_bp_event(struct perf_event *event, void *data)                     { }
 
 static inline void perf_event_mmap(struct vm_area_struct *vma)          { }
 static inline void perf_event_comm(struct task_struct *tsk)             { }
 static inline void perf_event_fork(struct task_struct *tsk)             { }
 static inline void perf_event_init(void)                                { }
-static inline int  perf_swevent_get_recursion_context(void)  { return -1; }
+static inline int  perf_swevent_get_recursion_context(void)             { return -1; }
 static inline void perf_swevent_put_recursion_context(int rctx)         { }
 static inline void perf_event_enable(struct perf_event *event)          { }
 static inline void perf_event_disable(struct perf_event *event)         { }
diff --git a/include/linux/syscalls.h b/include/linux/syscalls.h
index 91bd7d78a07d..8126f239edf0 100644
--- a/include/linux/syscalls.h
+++ b/include/linux/syscalls.h
@@ -99,7 +99,7 @@ struct perf_event_attr;
 #define __SC_TEST5(t5, a5, ...) __SC_TEST(t5); __SC_TEST4(__VA_ARGS__)
 #define __SC_TEST6(t6, a6, ...) __SC_TEST(t6); __SC_TEST5(__VA_ARGS__)
 
-#ifdef CONFIG_EVENT_PROFILE
+#ifdef CONFIG_PERF_EVENTS
 
 #define TRACE_SYS_ENTER_PROFILE_INIT(sname)                                    \
         .profile_enable = prof_sysenter_enable,                                \
@@ -113,7 +113,7 @@ struct perf_event_attr;
 #define TRACE_SYS_ENTER_PROFILE_INIT(sname)
 #define TRACE_SYS_EXIT_PROFILE(sname)
 #define TRACE_SYS_EXIT_PROFILE_INIT(sname)
-#endif
+#endif /* CONFIG_PERF_EVENTS */
 
 #ifdef CONFIG_FTRACE_SYSCALLS
 #define __SC_STR_ADECL1(t, a)           #a